Antisnarling-motion for spinning-mules.



No; 735,996. PATENTBD AUG. 11', 1903. T. MoAULIFFE. ANTISNARLING MOTIONFOR SPINNING MULES.

APPLIUATION FILED APR. 23, 1903.

N0 MODEL 4 SHEETS-SHEET 1.

PATENTED AUG. 11, I903.

T. MoAULIPPE. I

ANTISNARLING MOTION FOR SPINNING MULES.

APPLICATION FILED APR. 23. 1903.

BET 2.

No MODEL mzmolims vrrsns co, wnorour No. 735,996. I PATENTEDAmi-11,1903.

T. McAULIPFE. ANTISNARLING MOTION FOR SPINNING MULES.

APPLICATION FILED APR. 23 1903.

lio. 735,996.

UNITED "STAT S Iatented August 11, 1903 PATENT OFFICE.

TIMOTHY MCAULIFFE, OF LAWRENCE, MASSACHUSETTS.

ANTlSNARLlNG-MOTION FOR SPlNNING-MULES.

SPECIFICATION forming part of Letters Patent No. 785,996, dated August11, 1903.

Application filed AprilZS, 1903.

To all whom it may concern: 7

Be it known that LTIMoTHY MCAULIFFE,Of Lawrence, county of Essex, Stateof Massachusetts, have invented an Improvement in Antisnarling-Motionsfor Spinning-Mules,'of which the following descriptiom'in connectionwith the accompanying drawings, is a specification, like characters onthe drawings representing like parts. This invention relates tospinning-nudes, and more particularly to devices which are designed toprevent the formation of kinks or snarls in the yarn as it is fed fromthe feedrolls to the spindles,su ch devices being known asantisnarling-motions. During the com plete cycle of operations of themule the yarn should be slightly under tension, so as to prevent kinkingof the yarn, which will always occur the instant the yarn becomes slack.During the running-out or drawing-in of the carriage little difficultyis found in maintaining the yarn at proper tension, as the speed of thefeed-rollers and spindles may be made to correspond exactlyto the speedof the carriage. As the carriage finishes the running-in motion, thefaller-wires, which have been holding the yarn out of its direct courseas it is drawn from the feed-rolls to the spindles on which the yarn iswound, must be changed, so that the spinning operation may again takeplace. This change in position of the faller-wires gives 01f a certainamount of slack yarn which varies from an amount which is almostinappreciable to an inch or more. For this and other reasons it isnecessary to start the feed-rollers practically on the instant that thecarriage begins its outward run; but unless some provision is made totake up this extra slack yarn which is usually given off, kinks willappear in the yarn which will later become wound upon the cop andfinally become woven into the cloth. Various methods have been employedto take up this slack yarn, a usual method being to delay the startingof the rollers until after the carriage has moved out a short distance.This has been accomplished by causing the clutch member between thedriving-shaft and the roller-shaft, which is normally held to rotatewith the roller-shaft, to be set back a short distance from the positionin which it was at the end of the running-out motion, so that it serialNo.153,903. (No model.)

will be rotated a short distance by the driven clutch member before itmoves into operative connection with the roller-shaft.

In the ordinary operation of a spinningmule it often happens that thetension fallerwire is raised to different heights at the beginning ofthe winding-on operation, withthe result that when the taller-wireschange at the end of the winding motion more or less slack yarn will begiven off, which will only be taken up partially by the antisnarlingmotion, which must be set to take up no more than the normal amount ofslack yarn which is given off when the tension faller-wire is moved toits normal position. In spinningmules it is also common to rotate thefeedroller shaft at a relatively low speed during the running-in orWinding-on operation in order to increase the production and for otherreasons which need not be here explained, the mechanism which isemployed to accomplish this additional movement of the feedroller shaftbeing known as the roller-motion while winding. In case this motion isemployed and if it were also desired to use the antisnarling-motionabove referred to, the rotation of the shaft while winding wouldpractically set the clutch member back to its maximum limit and renderthe antisnarlingmotion ineffective, and, so far as I am aware, anantisnarling-motion of the character above referred to has never beencombined with the roller-motion during winding.

One of the objects of my invention is to provide a form ofantisnarling-motion which may be set positively, so as to take up aminimum length of slack yarn at each operation, and then be adjusted bythe spinner as the spinningoperation continues to take up more slackyarn, as the conditions may require.

A further object of my invention is to antomatically vary the extent towhich the starting of the feed-rollers will be retarded, according tothe position to which the tension faller-wire may be moved at thebeginning of the winding operation, so that if the fallerwire is movedabove the normal, thereby giving off more yarn than it does during itsnormal operation, then the roller-shaft will be correspondingly retardedin its starting movement, so that the additional amount of slack yarnwhich is given off under such abnormal condition will be taken up and ifthe tensionwire be moved to its normal position upon the next motion theroller-shaft will simply be retarded to its normal extent, so that therewill be no danger of the yarn being broken by the roller being retardedto too great an extent.

A further object of my invention is to provide means for setting backthe clutch member, which is connected to the roller-shaft during theoperation of backing-off, and then to lock the same upon theroller-shaft in preciscly the position to which it has been moved by theprevious motion, so that when the roller-shaft is rotated forward togive off additional yarn during the winding operation the extent towhich the clutch has been set back with relation to the shaft will notbe changed and the starting of the roller-shaft will be retarded to thesame extent at the beginning of the next spinning operation as it wouldif the shaft had been held stationary during the entire windingoperation.

I accomplish these objects by the means and mechanism hereinafterexplained, and illustrated in the accompanying drawings, in which-Figure 1 is a plan v iew illustrating the main parts of an ordinary formof spinning-mule to which my invention is applied. Fig. 2 is a side Viewof the head and certain parts of the carriage. Fig. 3 is a view of oneside of the motion comprised by my invention. Figs. 4 and 5 are views ofthe opposite side of the apparatus illustrated in Fig. 3, showing theparts in different positions. Fig. 6 is an end view, partly in section,011 line 00 0c of Fig. 1. 7 is a central longitudinal sectional viewthrough the feed-roller clutch mechanism. Fig. Sis a detail view of oneof the rollermotion gears.

The operation of a spinning-mule of the type illustrated in Figs. 1 and2 may be described in a general way as follows: Four pu1- leys a aremounted on the rim-shaft ct, two of said pulleys being loose and twofast on the shaft and being driven by a pair of belts in the usualmanner. The rim-shaft is provided with a wheel a about which the cablea, which drives the drums Z) on the carriage 0, passes, said drumsdriving the spindles b in the usual manner. The front feed-roller (Z isdriven through a clutch c, the loose member e of which is constantlydriven by the gear 6 As the carriage finishes its runningin motion a lugc thereon passes over a roller at the inner end of the long levcrf,drawing down a rod f and liberating the fastmember f of a clutch on thecam-shaft g, causing the cam-shaft to make half a rotation before rod fis again liberated, the loose member f of the cam-shaft clutch beingconstantly driven by the gear (6. This movement causes the cam e" on thecam-shaft to operate the forked lever c and throw the fast member 6 ofthe roller clutch 0, usually termed the catch-box, into gear, startingthe rollershaft. The same movement of the cam-shaft operates aclutch-lever g by means of the cam g thereon, throwing the clutch g intogear with the scroll-shaft 7)., thereby winding cable 9* onto the scrollg said cable passing about pulley g and being connected to the frontside of the carriage, so that the carriage is then drawn outwardly.During the outward run of the carriage the faller-wires 2' and j will beheld out of contact with the yarn and the yarn will be twisted in theusual manner. At the end of the outward run the lug c on the carriagewill pass under the roller at the outer end of the long lever f, tiltingthe lever and again permitting the fast member f of the cam-shaft clutchto move into gear with the driven member, causing the cam-shaft to berotated another half-turn,

throwing the clutch g out of gear and stopping the carriage, and alsoseparating the clutch members 6 e and stopping the feedroller. The backshaft 7L3 is constantly driven by gear a, and this shaft in turn drivesthe vertical shaft 71/1, on which the friction-clutch member h issplined, the other member 7L2 having a bevel-gear secured thereto, whichmeshes with a corresponding gear 011 the scroll-shaft h. During theoutward run of the carriage the cam 72, on the cam-shaft g holds thebell-crank lever h in the position shown in Fig. 6, said lever actingthrough the loosely-connected link It to press down the lever 71 whichis pivoted on the rocloshaft 71*, so as to lift the clutch member it outof engagement with member 7L2. As the camshaft is rotated at the end ofthe outward run the lever 77, is moved to draw up the link 71.7 andthrow clutch h 71. into gear; but just before this occurs an inclinedportion of the jawlever presses down a roll on lever 0 forein g thebackin g-off rod 0 rearwardly an d moving a lug c on lever c beneath theforked end of lever 71?, thereby preventing such action. This movementalso throws clutch a on the rim-shaft a into gear and at the same timethe belts 011 the pulleys a are shifted and the rim-shaft is rotatedrearwardly, causing the spindles to be reversed and the backing-off n 5motion to be accomplished. The backward rotation of the drum 1) drawsdown the copping faller-wire 1' through the chain (indicated in dottedlines at i) and at the same time the tension faller-wire j is thrownupwardly by any suitable means usually employed for this purpose. Thismotion releases the lever 0 so that it may be drawn back by its spring cthrowing the backing-off rod 0 forwardly,

so that the lever c is drawn forward, libcr- I25 ating the lever 71. andclutch member 7L and permitting it to be quickly forced into engagementwith the member 7L2 by spring h thereby causing the scroll-shaft 7b tobe reversed,

so that the cable It is wound on the scroll h and the carriage starts torun. in. At the beginning of the running-in motion of the carriage thebacking-off motion will have ceased and the spindles will have againbeen to the present invention a further description thereof isunnecessary. When the cam-shaft is again rotated at the latter part ofthe rundirection.

ning-in motion, lever 72 is again moved to the position shown in Fig. 6and the member 72 is lifted out of gear. This movement is practicallysimultaneous with the movement which throws the clutch members 6 and 9into gear.

As shown in Fig. 3, the fast clutch member or catch-box e on thefeed-roller instead of being splined on the shaft in the usual manner,as when an antisnarling-motion is not employed, is provided with a pairof lugs 6 which are arranged within a circular recess formed in its endnext the other clutch member. The shaft of the feed-roller cl has a pairof arms d rigidly secured thereto in a position to engage the lugs e onthe catch-box 6 This arrangement permits nearly a half a rotation of thecatch-box on the shaft 01 before the arms 01 and lugs 6 come intoengagement.

A bracket is is secured to the frame of the machine and a shaft is is journaled therein. A wheel k is journaled on the shaft is, one side ofsaid wheel being made heavier than the other, as indicated, so that incertain positions it will tend to rotate in the direction of the arrowin Fig. 3. The wheel 76 and catch-box e are each provided with abeltgroovein which a belt L is arranged. Secured to the shaft is a dogM, having at one end two stop-arms m m, which extend approximately inthe same direction.

A plate a is secured by bolts n or to the bracket is, the bolt n passingthrough an areshaped slot in the plate permitting a swinging adjustmentthereof on bolt n. Said plate has on its side an adjusting-block 0,which is slidably supported on a projecting rib n on the side of theplate and is held in place by a bolt n which passes through a slot inthe bracket, as indicated in Figs. 2 and 3. A guide-rod 0' is secured tothe block 0 and passes through a lug n on the plate 11, and a spring 0is arranged on said rod between said block and said lug. The uppersurface of said block is provided with a series of steps, as indicatedat 0 the surface of the block between each step extending obliquely, asshown. A depending finger 0 is rigidly secured to the block 0. A lug non the plate or acts to limit the forward movement of the block 0, saidblock being normally held against said stop by the spring 0 Anadjusting-screw 'm is threaded in the arm m and is adapted to rest onthe upper side of the block 0. The lower arm m extends directly beneaththe bracket It, so that it may engage the same and limit the rotation ofthe shaft 70 in one A stop-finger Z0 is secured to the opposite end ofshaft 70 from dog M and is arranged between a stop-lug 70 on the wheel k'and the end of a set-screw 143 which is threaded in alug k on thewheel.

The tension faller-shaft j has an arm j se cured, thereto, and a lever qis loosely pivoted on the copping faller-shaft t" or at any otherconvenient point on the carriage, the outer end of said lever 9 beingweighted and resting on the upper side of the arm j The inner end of thelever q is provided with a vertically-extending adjustable finger Theoperation of the motion thus far de-- scribed is as follows: During theoutward run of the carriage the catch-box or fast member 6 of theroller-clutch will be driven so that its lugs 6 will be moved againstthe arms d of the roller, causing the latter to rotate and give off yarnin the manner previously described. This action drives the belt L andcauses the wheel 7.0 to rotate, moving the end of the screw 70 intoengagement with the stopfinger k. This movement causes the shaft is torotate to such an extent that the lower arm 'm is brought intoengagement with the under side of the bracket lo, preventing furtherrotation of the shaft and also of the wheel 70 The belt L will then slipabout the wheel during the remainder of the outward run. At the finishof the outward run the rollerclutch members are separated, stopping theroller, and the instant these members are disconnected the weighted sideof the wheel 70 will move downwardly, causing the wheel k to rotate inthe direction of the arrow in Fig. 3. This rotation continues until thelug k is moved against the stop -finger 70. During this rotation theclutch member 6 will be rotated rearwardly, so that the lugs e will bemoved back out of engagement with the fingers d, as indicated in Fig. 3,with the result that when the clutch member c is again thrown intoengagement with the driven member the member 6 must make a part of arevolution before its lugs e engage the arms d, thereby delaying thestarting of the feedroll with relation to the starting of the carriageon its outward run. It will be observed that the extent to which theclutch member 6 will be set back in the manner just described willdepend on the distance which the wheel may rotate .before lug 70 engagesfinger is, and this depends, first, on the position of the finger k,and, second, upon the distance between the end of the stop-screw 70 andthe lugk The greater the distance between the end of the screw 10 andfinger 7.: when the lug k is resting against said finger, the greaterwill be the arc through which the wheel k may be rotated during therunning-out motion, and therefore the greater the are through which theclutch member e will be rotated rearwardly when it is liberated at thefinish of the outward run. The weight of the arms m m and theadjusting-screw m are such that the end of the screw m will always reston the upper side of the block 0 except when it is lifted therefrom bythe rotation of the wheel 10 in the opposite direction from the arrow inFig. 3 during the running-out motion. It will be seen, therefore, thatif the adjusting-screw m is unscrewed or turned up both the arm on andstop-finger will be swung downwardly, moving the latter away from thelug 7c and permitting the wheel 70 to rotate in the direction of thearrow in Fig. 3 through a greater arc, thereby setting back thecatch-box to a great extent and correspondingly further delaying thestarting of the roller with relation to the starting of the outward runof the carriage. If also the block 0 were moved rearwardly, so as tocompress the spring 0 the end of the screw m would fall down on one ofthe steps 0 of the block, thus lowering the finger 70 andcorrespondingly delaying the starting of the roller, as beforeexplained.

The means employed in many instances for lifting the tensionfaller-wires at the beginning of the running-in motion does not alwayslift said wires to the same elevation, and it is necessary to adjust theapparatus described so that the slack yarn which is given off by thechanging of the faller-wires will be taken up by the mechanism forsetting back the catch-box just described, when the fallerwires give offpractically the minimum amount of thread at the end of the running-inmotion. If, however, the tension faller-wire is thrown up above thenormal, a proportionate amount of additional slack yarn will be givenoff, which will not be taken up in the manner described, and willtherefore run into kinks or snarls.

The weighted end of the lever q rests on the arm and the finger g is soadjusted that when the tension taller-wire is raised to its minimum ornormal height it will pass directly beneath the depending finger 0 onthe block 0 without touching the same, so that the normal amount ofslack yarn will be taken up. If, however, the tension fallerwire isthrown up above the normal, the weighted end of the lever q will swingdown a corresponding distance, lifting the finger (1 so that as thecarriage runs in and approaches the finish of the running-in motion saidfinger will engage the depending finger 0 as shown in Fig. 5, and willpush said block 0 rearwardly, permitting the screw m to drop onto one ofthe steps 0 and swinging the finger 7r. downwardly, thereby permittingwheel 70 to move back the clutch member e from the position in which itwas set at the beginning of the running-in motion, so that theadditional slack yarn which will be given off upon the changing of thefaller-wires at the end of the inward run will be taken up bycorrespondingly delaying the starting of the roller.

It will be observed that the plate n is arranged obliquely to thehorizontal, so that as the block 0 is moved to the rear it also slidesupwardly, and as the end of the finger g moves in an exactly horizontalpath it follows that as the block 0 is pushed rearwardly it will also belifted slightly, so that if the tension faller-wire has only been thrownslightly above the normal the block will be pushed back only a shortdistance, permitting the screw on to fall upon the first step, as shownin Fig. 5 but if the faller-wire is thrown considerably above the normalthe screw m may drop upon the lowest step, thereby causing the apparatusto retard the starting of the roller to the maximum extent. As therollerclutch is thrown into gear and is rotated forward the wheel k willalso be rotated forwardly, moving the end of the screw into engagementwith the stop-finger 7a. This will cause the arms m m to be swungupwardly, lifting the screw m out of engagement with the block, and asthe screw no longer prevents the block 0 from being moved forwardly thespring 0 will push the block forward to the position shown in Fig. at.In this way the parts will be returned to their normal position, so thatif upon the next motion the faller-wire is simply thrown up to itsnormal height the normal amount of slack yarn will be taken up at thebeginning of the running-out operation.

It is common in spinning-mules, particularly with certain classes ofwork, to provide a gear 19 on the roller, which may be constantly drivenby the gear 19 19 the latter having a pawl-and-ratchet connection withits drivingshaft, said gears acting to drive the front feedroller slowlywhen the clutch members 6 e are separated, thereby giving off a certainamount of thread during the winding operation, this action beingknown asthe rollermotion during winding. When the mule is provided with thismotion, the roller will be rotated forward during the running-in n10-tion, thus swinging the arms (1 thereon forward into engagement with theopposite lugs from those with which they were in engagement during thefeeding motion while the spinning operation was taking place, unlessmeans were provided to prevent such action. This would therefore havethe effect of causing the roller to be retarded nearly half a revolutionat the beginning of the running-out motion, and it would consequentlyrender the entire operation previously described ineffective. To preventthe clutch member 6 from being moved from the position on the shaft towhich it was turned at the end of the running-out motion,I provide amechanism which I will now describe.

The end of the clutch member 0 opposite its toothed end is provided witha conical-shaped cavity e", and a clutch-sleeve s is splined on theroller-shaft, as shown in Fig. 7. The end of said sleeve next the member6 is made conical and provided with a conical face, preferably coveredwith leather, and said sleeve is also provided with an annular groove 8in its surface. A forked lever 8 (shown in dotted lines in Fig. 6 and inFigs. 1 and 2) engages the groove 5 in said sleeve and is secured to ahorizontal shaft .3 Said shaft is j ournaled in rigid bearings on thehead and is provided with an arm 3 A link 5' is pivoted to the arm .9 atone end and passes loosely through an arm 3 which is rigidly secured torocksh'aft h. A spring 8 is arranged on link 3 between a nut s and arm 5and a nut s is provided on said link at the opposite side of arm 8 fromsaid spring. The operation of this part of the mechanism is as follows:At the end of the running-out motion the rollerclutch is thrown out ofgear, and the clutch membere thereon is almost instantlyset back, asbefore described, this operation being completed while the backing-offmotion is taking place. The backing-off rod 0 is then drawn forwardly,releasing thelever 7L rotating the rock-shaft 77, and putting the clutchh 71.2 into gear to start the carriage on its inward run. This movementof the rock-shaft will force the arm 8 against spring .9 drawing link 5to the left, rotating shaft 5 and swinging forked arm .9 so that itmoves the sleeve 8 into engagement with the clutch member 6 therebylocking the latter upon the rollershaft. This action will thereforeprevent the roller-shaft from rotating within the clutch member 6 duringthe running-in motion. As the carriage finishes its inward run therockshaft h will be moved in the opposite direction by the cam h so thatthe clutch-sleeve s will be moved away from the member 6 so as to unlockthe same at the same instant the latter is thrown into gear. As thethrowing out of the running-in clutch of the scroll-shaft andthethrowing in of the running-out and roller clutch must be practicallysimultaneous, it would be practically impossible to employ the lockingmechanism j, just described,

in connection with the means for varying the starting of the feed-rolleraccording to the position of the tension faller-wire, which operatestoward the end of the running-in mo tion,without additional mechanism.To combine these mechanisms and to prevent all posroller-shaft. (SeeFig. 7.) A shaft 79 is journaled on the head, and a forked arm 19 1ssecured thereto and engages an annular groove in the catch-box 19 Twointermeshing gears 19 p are respectively secured to shafts p 8 so thatwhen the shaft 5 is rotated to throw the clutch-sleeve 5 into engagementwith the catch-box e the constantly-driven gear p will also be connectedto the roller-shaft d, and when the sleeve .9 is thrown in the oppositedirection the gear 19 will be disconnected. With a this arrangement,therefore, the roller-motion will not be thrown into operation untilafter the catch-box c has been set back at the beginning of therunning-in motion, the catch box 6 being locked and the roller motionstarted simultaneously.

As shown in Figs. 1 to 6, the end of rod 0 is provided with an inclinedor wedge-shaped head 0 and arranged directly over said head is avertically-guided bar 0, having a frictionroller 0 at its lower end,which is adapted to rest on the inclined portion of said head whensleeve 3 is in engagement with catchbox 6 as hereinafter explained.The'upper end of said bar 0 is pivotally connected to one end of a lever0 which is pivoted on a bracket 0 the other end of said lever beingpivotally connected to an arm 0 secured to shaft 5 When the faller-wiresj are raised too high and the block 0 is consequently pushed back, asshown in Fig. 5, the wedgeshaped head 0 will force'the bar 0 upward,swinging lever 0 so asto force shaft 8 to rotate, compressing spring 8and at the same time throwing sleeve 8 out of gear with the catch-box eand the catch-box p out of gear with the gear 1), thereby unlocking thecatchbox 6 so that it may be' rotated rearwardly by wheel k anddisconnecting the gear 19, so that the roller is instantly stopped. Thisaction takes place just before the change takes place at the end of therunning-in motion, which will relieve the tension on spring 8 and returnthe parts to the position shown in Fig. 6.

The set-screw 70* is set so that the roller will be retarded accordingto the staple, twist per inch, &c., of the yarn to be produced, and

this adjustment is not to be changed by the spinner while theseconditions exist. As the cops are filled an increasing amount of slackyarn is given off at the end of each spinning operation, and for thisreason the spinner should from time to time unscrew the screw meanspermitting limited backward movement of the other clutch member withrelation to said roller, a weight-actuated wheel, a belt passing aboutsaid wheel and the clutch member last named, a stop-finger, and stops onsaid wheel at opposite sides of said finger, one of said stops beingadjustable, substantially as described.

' 2. In a spinning-mule, the combinationwith the feed-roller, a clutchtherefor and means for driving one of the members of said clutch,

means permitting limited backward movement of the other clutch memberwith relation to said roller, a weight-actuated wheel,

a belt passing about said wheel and the clutch member last named,anadjustable stop-finger,

and stops 011 said wheel at opposite sides of said finger,one of saidstops being adjustable, substantially as described.

3. In a spinninganule, means for varying the time of starting thefeed-ro1ler withrelation to the starting of the carriage, comprising astop, clutching and roll'actuating mechanism controlled thereby, thetension faller mechanism and means for automatically varying theposition of said stop with relation to the position of said fallermechanism, substantially as described.

4. In a-spinning-mule the combination with the feed-roller, a clutchthrough which said roller is driven, means permitting limited rotationof the fast clutch member with relation to the roller, means forrotating said fast clutch member backwardly when it is separated fromthe driven member, a stop for limiting the extent of such backwardmovement, the tension faller mechanism, and

-means controlled thereby for varying the position of said stop,substantially as described.

5. In a spinning-mule the combination with the feed-roller, a clutchthrough which said roller is driven, means permitting limited rotationof the fast clutch member with relation to the roller, means forrotating said fast clutch member backwardly when it is separated fromthe driven member, a stop for limiting the extent of such backwardmovement, a movable support for holding said stop in differentpositions, the tension faller mechanism, the carriage, a finger carriedthereby, connections between said finger and said faller mechanism forvarying the position of said finger according to the position of thefaller mechanism and means for causing said finger to engage saidsupport when the finger is moved from its normal position, substantiallyas described.

6. In aspinning-mule, the combination with the feed-roller, a clutchthrough which said roller is driven, means permitting limited rotationof the fast clutch member with relation to the roller, means forrotating said fast clutch member backwardly when it is separated fromthe driven member, a stop for limiting the extent of such backwardmovement, the tension faller mechanism, and means controlled thereby forvarying the position of saidstop, said means comprising a sliding blockhaving a series of supportin -faces arranged adjacent each other atdifferent elevations, a weighted arm resting on one of said faces andconnected to said stop, a finger on the carriage, means connected to-thetension faller mechanism for varying the position of said fingeraccording to the position of said faller mechanism, means for causingsaid finger to engage said block and to change the position thereof andpermit said weighted arm to move onto a different face, substantially asdescribed.

7. In a spinningmule, the combination with the carriage movable to andfrom the mulehead, the feed-roller, a clutch therefor and means fordriving one of the members of said clutch, means permitting limitedbackward movement of the other clutch member with relation to saidroller, means for rotating the latter clutch member backward when saidmembers are separated at the end of the out ward run of the carriage,and means for looking said latter member on. the roller in its retractedposition and for driving the roller independently during the running-inmotion of the carriage, substantially as described.

8. In a spinning-mule, the combination with the carriage movable to andfrom the mulehead, the feed-roller, a clutch therefor and means fordriving one of the members of said clutch, means permitting limitedbackward movement of the other clutch member with relation to saidroller, means for rotating the latter clutch member backward when saidmembers are separated at the end of the outward run of the carriage, andmeans for looking said latter member on the roller in its retractedposition, comprising an oscillating arm and means for moving the-same inopposite directions at the end of each movement of the carriage, alocking-clutch on the roller adapted to lock the feed-roller-clutchmember in different positions with relation to the roller, connectionsbetween said arm and said locking-clutch for moving the latter to lockand unlock said roller-clutch member at the beginning and end of therunning-in motion of the carriage, and means, independent of saidroller-clutch, for rotating the roller, substantially as described.

9. In a spinning-m ule, the combination with the carriage movable to andfrom the mulehead, the feed-roller, a clutch therefor and means fordriving one of the members of said clutch, means permitting limitedbackward movement of the other clutch member with relation to saidroller, means for rotating the latter clutch member backward when saidmembers are separated at the end of the outward run of the carriage, andmeans for looking said latter member on the roller in its retractedposition, comprising an oscillating arm and means for moving the same inopposite directions at the end of each movement of the carriage, alocking-clutch on the roller adapted to lock the feed-roller-clutchmember in different positions with relation to the roller, yieldingconnections between said arm and said locking-clutch for moving thelatter to lock and unlock said roller-clutch member at the beginning andend of the runningin motion of the carriage, and means, independent ofsaid roller-clutch, for rotating the roller, substantially as described.

10. In a spinning-mule the combination with the carriage movable to andfrom the mulehead, the feed-roller, actuating mechanism thereforoperating during the running-out motion of the carriage, retardingmechanism for said actuating mechanism, and means for setting the sameat the end of the running- IIO out motion, means for locking saidretarding mechanism after it has been set and during the running-inmotion, and means for driving said roller independently of its saidactuating mechanism during the running-in motion, substantially asdescribed.

11. In a spinning-mule the combination with the feed-roller, a clutchtherefor and means for driving one of the members of said clutch, meanspermitting limited backward movement of the other clutch member withrelation to said roller, a weight-actuated wheel, a belt passing aboutsaid wheel and the clutch member last named, and stops for limiting therotation of said wheel in either direction, substantially as described.

12. In a spinning-mule, the combination with the feed-roller, a clutchtherefor and means for driving one of the members of said clutch, meanspermitting limited backward

